Construction device for nuclear power engineering

Abstract

The invention relates to the field of nuclear power construction, in particular to a nuclear power engineering construction device which comprises a hydraulic cylinder, main supporting frames are fixedly mounted at the front end and the rear end of the hydraulic cylinder correspondingly, top seats are rotationally mounted at the ends of the two main supporting frames correspondingly, the top seats are obliquely arranged, and auxiliary supporting frames are arranged below the two main supporting frames correspondingly; a top frame is rotatably installed at one end of the auxiliary supporting frame, the end of the top frame is rotatably connected with the top seat, an adjusting sliding sleeve is fixedly installed at the other end of the auxiliary supporting frame and slidably installed on the outer surface of the main supporting frame, an adjusting stud is screwed on the side face of the main supporting frame in a penetrating mode, and the end of the adjusting stud is rotatably connected with the auxiliary supporting frame. According to the concrete surface tensioning device, tensioning can be conveniently conducted, meanwhile, the concrete surface tensioning device can adapt to concrete surfaces with different gradients, the construction requirement is effectively met, the stability during tensioning is ensured, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the field of nuclear power construction, in particular to a construction device for nuclear power engineering. Background Art

[0002] In nuclear power plant construction, prestressed concrete, a key structural material, requires the artificial introduction of specific internal stresses with a specific value and distribution to partially or completely offset external load stresses. Prestressed concrete construction is primarily categorized into pre-tensioning and post-tensioning methods based on the method of prestressing. The post-tensioning method involves pouring concrete first. Once the concrete reaches the required strength, prestressing tendons are inserted through the concrete. The tendons are then clamped at both ends. A hydraulic cylinder is then applied to the concrete surface to tension the tendons, imparting prestress. Cement slurry is then injected through grouting holes in the concrete to bond the tendons to the concrete, creating prestressed concrete.

[0003] However, due to the special structural requirements of some nuclear power projects, the surfaces of some concrete are mostly inclined. At this time, when the hydraulic cylinder top is tensioning on the inclined concrete surface, the hydraulic cylinder will be tilted, and the tilted hydraulic cylinder will cause the tensioning direction to shift, resulting in the tensioning direction and the orientation of the prestressed tendons being inconsistent, making it inconvenient to tension. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a construction device for nuclear power engineering.

[0005] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0006] Preferably, the clamping member includes two grooved sliding columns that are slidably installed at both ends of the tensioning seat, and the opposite ends of the two grooved sliding columns are fixedly installed with a sleeve, and a positioning sleeve is provided on the side of the sleeve. The positioning sleeve is connected to the tensioning seat, and the two sleeves are symmetrical with the center line of the positioning sleeve as the center of symmetry.

[0007] Preferably, the upper ends of the two guide sleeves are fixedly mounted with vertical frames, a servo push cylinder is fixedly mounted between the ends of the two vertical frames, an L-shaped push frame is fixedly mounted on the output end of the servo push cylinder, a pressure frame is slidably mounted on one end of the L-shaped push frame, and two clamping frames are symmetrically connected to the lower end of the pressure frame, the ends of the clamping frames are connected to the slot slide column, and the clamping frames are arranged at an angle.

[0008] Preferably, a carrier frame is fixedly installed at the other end of the L-shaped push frame, and a knife shaft is rotatably installed at the lower end of the carrier frame. The outer surface linear array of the knife shaft is coaxially inlaid with multiple ring knives, and the inner surface linear array of one of the sleeves is extended with multiple ridges, and the spacing between the multiple ridges is the same as the spacing between the multiple ring knives.

[0009] Preferably, a sleeve frame is fixedly installed on the outer surface of the positioning sleeve, the end of the sleeve frame is fixed to the tensioning seat, a return spring is wound around the outer side of the groove slide, and the opposite ends of the two groove slides are coaxially inlaid with connecting caps, one end of the return spring is fixed to the connecting cap, and the other end of the return spring is fixed to the tensioning seat.

[0010] Preferably, a lower connecting ear extends from the upper end of the groove slide column, and the lower end of the clamping frame is rotatably connected to the lower connecting ear. Two upper connecting ears extend symmetrically from the lower end of the pressing frame, and the upper end of the clamping frame is rotatably connected to the upper connecting ear. A protrusion extends from the corner of the L-shaped push frame, and a guide rod is fixedly installed on the upper end of the protrusion, and one of the vertical frames is slidably installed on the outer surface of the guide rod.

[0011] Preferably, a pressure shell is embedded in the middle of the pressure frame, an anti-drop cap is slidably installed inside the pressure shell, a pressure rod is coaxially extended from the upper end of the anti-drop cap, the pressure rod passes through the upper end of the pressure shell, the pressure rod and the pressure shell are slidably fitted, and a pressure cap is coaxially embedded in the upper end of the pressure rod, and one end of the L-shaped push frame is fixed to the pressure cap.

[0012] Preferably, a servo motor is fixedly mounted on the upper end of the carrier frame, and a synchronous belt is connected between the output end of the servo motor and the end of the knife shaft via a pulley.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The inclined top seat can adapt to the inclined concrete surface when tightening, so that the tensioning direction of the hydraulic cylinder can be consistent with the direction of the prestressed tendons when tensioning the prestressed tendons, so as to facilitate tensioning. At the same time, by rotating the adjusting stud, the auxiliary support frame can be driven to move sideways, so as to drive the top frame to move and push the top seat, so that the inclination angle of the top seat changes to adapt to concrete surfaces of different inclinations and meet its construction needs.

[0015] 2. The L-shaped push frame that moves downward can drive the rotating ring knife on the carrier frame to move downward to open multiple grooves on the end surface of the prestressed tendon. During this process, the anti-drop cap slides in the compression shell, and the compression frame remains stationary. When the grooves on the prestressed tendon are completed, the pressure cap on the L-shaped push frame just fits the upper end of the compression shell, and then the L-shaped push frame continues to drive the ring knife downward so that the ring knife is located below the jacket. During this process, the downward pressure cap presses the compression shell to drive the compression frame downward, thereby driving the clamping frame to move to press the jacket. Push to make the two sleeves move toward each other. At this time, the groove slide column slides on the tensioning seat to guide the sleeves, so that the two sleeves can hold the ends of the prestressed tendons tightly. At the same time, the convex ribs are inserted into the opened grooves, so as to use friction and engagement force to increase the clamping force of the prestressed tendons, so that the prestressed tendons are firmly fixed and avoid sliding, thereby ensuring stability during tensioning. The clamping can be completed while the prestressed tendons are grooving. The process does not require secondary operation, which effectively facilitates use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the servo push cylinder of the present invention;

[0018] Figure 3 An internal view of the compression shell of the present invention;

[0019] Figure 4 This is a schematic diagram of the frame of the present invention;

[0020] Figure 5 For the present invention Figure 2 A magnified view of middle A;

[0021] Figure 6 is a schematic diagram of a jacket of the present invention;

[0022] Figure 7 It is another perspective schematic diagram of the present invention;

[0023] Figure 8 For the present invention Figure 7 Magnified view of B.

[0024] In the accompanying drawings, the list of parts represented by each number is as follows: 1. Main support frame; 2. Auxiliary support frame; 3. Adjusting slide; 4. Guide slide; 5. Connecting frame; 6. Tensioning seat; 7. Vertical frame; 8. Servo push cylinder; 9. Servo motor; 10. Hydraulic cylinder; 11. Adjusting stud; 12. Guide rod; 13. L-shaped push frame; 14. Carrying frame; 15. Boss; 16. Pressure cap; 17. Pressure rod; 18. Pressure shell; 19. Pressure frame; 20. Ring knife; 21. Positioning sleeve; 22. Sleeve frame; 23. Knife shaft; 24. Anti-slip cap; 25. Synchronous belt; 26. Top seat; 27. Clamping frame; 28. Groove slide; 29. Lower ear; 30. Upper ear; 31. Reset spring; 32. Sleeve; 33. Protruding ridge; 34. Connecting cap; 35. Top frame. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The present invention provides a technical solution: Figures 1-8The construction device for nuclear power engineering shown in the figure includes a hydraulic cylinder 10, and the front and rear ends of the hydraulic cylinder 10 are fixedly installed with a main support frame 1, and the ends of the two main support frames 1 are rotatably installed with a top seat 26, and the top seat 26 is arranged in an inclined manner. The inclined top seat 26 can adapt to the inclined concrete surface when tightening, so that when the hydraulic cylinder 10 tensions the prestressed tendons, its tensioning direction can be consistent with the direction of the prestressed tendons, so as to facilitate tensioning. A secondary support frame 2 is provided below the two main support frames 1. The main support frame 1 and the secondary support frame 2 can be pressed against the concrete, so that the hydraulic cylinder 10 maintains sufficient tension to tension the prestressed tendons. One end of the secondary support frame 2 is rotatably installed with a top frame 35, and the end of the top frame 35 is rotatably connected to the top seat 26. The other end of the secondary support frame 2 is fixedly installed with an adjusting sleeve 3, and the adjusting sleeve 3 is slidably installed on the outer surface of the main support frame 1. The adjusting sleeve 3 guides the secondary support frame 2. The side of the main support frame 1 is tightened with an adjusting stud 11. By rotating the adjusting stud 11, the secondary support frame 2 can be driven to move sideways, so as to drive the top frame 35 to move and push the top seat 26, so that the inclination angle of the top seat 26 changes to adapt to concrete surfaces with different inclinations. The end of the adjusting stud 11 is rotatably connected to the secondary support frame 2, and the output end of the hydraulic cylinder 10 is fixedly installed with a tensioning seat 6. The outer surfaces of the two main support frames 1 are slidably installed with guide sleeves 4, and the guide sleeves 4 guide the tensioning seat 6. The opposite surfaces of the two guide sleeves 4 are extended with connecting frames 5, and the ends of the connecting frames 5 are fixed to the tensioning seat 6. The connecting frames 5 fix the guide sleeves 4 and the tensioning seat 6 together. The guide sleeve 4 is away from the side of the adjusting sleeve 3, and the end of the tensioning seat 6 is installed with a clamp.

[0027] The clamping part includes two groove slides 28 that are slidably installed at both ends of the tensioning seat 6. The opposite ends of the two groove slides 28 are fixedly installed with sleeves 32. The groove slides 28 serve to guide the sleeves 32. A positioning sleeve 21 is provided on the side of the sleeve 32. The positioning sleeve 21 is connected to the tensioning seat 6. The two sleeves 32 are symmetrical with the center line of the positioning sleeve 21 as the center of symmetry. The positioning sleeve 21 can be sleeved on the end of the prestressed tendon for positioning, so that the end of the prestressed tendon is located between the two sleeves 32.

[0028] The upper ends of the two guide sleeves 4 are fixedly installed with a stand 7, and a servo push cylinder 8 is fixedly installed between the ends of the two stand 7. The stand 7 plays a role in fixing the servo push cylinder 8. The output end of the servo push cylinder 8 is fixedly installed with an L-shaped push frame 13, and one end of the L-shaped push frame 13 is slidably installed with a pressure frame 19. The L-shaped push frame 13 plays a pushing role. The lower end of the pressure frame 19 is symmetrically connected to two clamping frames 27. The ends of the clamping frames 27 are connected to the groove slide column 28. The clamping frame 27 is arranged at an angle. The pressure frame 19 moves downward to drive the clamping frame 27 to move, so as to push the sleeve 32 and make the two sleeves 32 move toward each other.

[0029] The other end of the L-shaped push frame 13 is fixedly installed with a carrier frame 14, and the lower end of the carrier frame 14 is rotatably installed with a knife shaft 23. The carrier frame 14 plays a role in supporting the knife shaft 23. The outer surface linear array of the knife shaft 23 is coaxially inlaid with multiple ring knives 20. The knife shaft 23 plays a role in supporting the ring knives 20. The inner surface linear array of one of the jackets 32 extends with multiple ridges 33. The spacing between the multiple ridges 33 is the same as the spacing between the multiple ring knives 20, which can ensure that after the ring knife 20 opens multiple grooves on the end surface of the prestressed tendon, the ridges 33 can be smoothly inserted into the opened grooves.

[0030] A sleeve frame 22 is fixedly installed on the outer surface of the positioning sleeve 21, and the end of the sleeve frame 22 is fixed to the tensioning seat 6. The sleeve frame 22 serves to fix the positioning sleeve 21. A return spring 31 is wound around the outer side of the groove slide 28. The opposite ends of the two groove slides 28 are coaxially inlaid with connecting caps 34. One end of the return spring 31 is fixed to the connecting cap 34, and the other end of the return spring 31 is fixed to the tensioning seat 6. The return spring 31 serves to reset the sleeve 32 that moves towards each other.

[0031] A lower ear 29 is extended from the upper end of the groove slide 28, and the lower end of the clamping frame 27 is rotatably connected to the lower ear 29. Two upper ears 30 are symmetrically extended from the lower end of the pressing frame 19, and the upper end of the clamping frame 27 is rotatably connected to the upper ear 30. The lower ear 29 and the upper ear 30 both serve to facilitate the connection of the clamping frame 27. A protrusion 15 is extended from the corner of the L-shaped push frame 13, and a guide rod 12 is fixedly installed on the upper end of the protrusion 15. The protrusion 15 serves to fix the guide rod 12. One of the vertical frames 7 is slidably mounted on the outer surface of the guide rod 12, and the guide rod 12 serves to guide the L-shaped push frame 13.

[0032] The middle part of the pressure frame 19 is inlaid with a pressure shell 18, and an anti-drop cap 24 is slidably installed inside the pressure shell 18. The upper end of the anti-drop cap 24 is coaxially extended with a pressure rod 17. The anti-drop cap 24 prevents the pressure rod 17 from separating from the pressure shell 18. The pressure rod 17 passes through the upper end of the pressure shell 18, and the pressure rod 17 slides with the pressure shell 18. The upper end of the pressure rod 17 is coaxially inlaid with a pressure cap 16. One end of the L-shaped push frame 13 is fixed to the pressure cap 16, and the ring knife 20 moves down in the pre- When multiple grooves are opened on the end surface of the stress reinforcement, the anti-slip cap 24 will slide in the compression shell 18, and the pressure frame 19 will remain stationary. When the grooves on the prestressed reinforcement are completed, the pressure cap 16 on the L-shaped push frame 13 will just fit against the upper end of the compression shell 18, and then the L-shaped push frame 13 will continue to move downward to press the compression shell 18 through the pressure cap 16 to drive the pressure frame 19 to move downward, and then drive the clamping frame 27 to move to push the jacket 32, so that the two jackets 32 move toward each other.

[0033] A servo motor 9 is fixedly mounted on the upper end of the carrier frame 14 , and a synchronous belt 25 is connected between the output end of the servo motor 9 and the end of the knife shaft 23 via a pulley. The servo motor 9 can drive the ring knife 20 on the knife shaft 23 to rotate through the synchronous belt 25 .

[0034] During tensioning, first put the positioning sleeve 21 on the end of the prestressed tendon to position it so that the end of the prestressed tendon is located between the two jackets 32. At this time, the top seat 26 is in contact with the concrete surface, and then the servo push cylinder 8 works to drive the L-shaped push frame 13 to move downward, so that the rotating ring knife 20 on the carrier frame 14 is driven downward by the downward moving L-shaped push frame 13 to move downward, so as to open a plurality of grooves on the end surface of the prestressed tendon. During this process, the anti-slip cap 24 slides in the pressure shell 18, and the pressure frame 19 remains stationary. When the grooving on the prestressed tendon is completed, the pressure cap 16 on the L-shaped push frame 13 just fits the upper end of the pressure shell 18, and then the L-shaped push frame 13 continues to drive the ring knife 20 to move downward, so that the ring knife 20 is located below the jacket 32. During the process, the downward pressure cap 16 will press the pressure shell 18 to drive the pressure frame 19 to move downward, and then drive the clamping frame 27 to move to push the sleeve 32, so that the two sleeves 32 move toward each other. At this time, the groove slide 28 slides on the tensioning seat 6 to guide the sleeve 32, so that the two sleeves 32 can be tightly clamped on the end of the prestressed tendon, and the ridge 33 is inserted into the opened groove to firmly clamp the prestressed tendon. Then the hydraulic cylinder 10 works, and the top seat 26 is pressed against the concrete, so that the hydraulic cylinder 10 maintains sufficient tension to tension the prestressed tendon so that it has prestress. At the same time, to ensure the smooth progress of tensioning, two devices can be used to clamp and tension the two ends of the prestressed tendon respectively.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A construction device for nuclear power engineering, comprising a hydraulic cylinder (10), characterized in that: The front and rear ends of the hydraulic cylinder (10) are fixedly mounted with a main support frame (1), the ends of the two main support frames (1) are rotatably mounted with a top seat (26), and the top seat (26) is arranged in an inclined manner. A secondary support frame (2) is arranged below the two main support frames (1), one end of the secondary support frame (2) is rotatably mounted with a top frame (35), and the end of the top frame (35) is rotatably connected to the top seat (26). The other end of the secondary support frame (2) is fixedly mounted with an adjusting sleeve (3), and the adjusting sleeve (3) is slidably mounted on the outer surface of the main support frame (1). An adjusting stud (11) is screwed through the side of the main support frame (1), and the end of the adjusting stud (11) is rotatably connected to the auxiliary support frame (2). The output end of the hydraulic cylinder (10) is fixedly installed with a tensioning seat (6). The outer surfaces of the two main support frames (1) are slidably installed with guide sleeves (4). The opposite surfaces of the two guide sleeves (4) are extended with connecting frames (5). The end of the connecting frame (5) is fixed to the tensioning seat (6). The guide sleeve (4) is away from the side of the adjusting sleeve (3). The end of the tensioning seat (6) is installed with a clamping member.

2. A construction device for nuclear power engineering according to claim 1, characterized in that: The clamping member includes two groove slides (28) that are slidably installed at both ends of the tensioning seat (6), and the opposite ends of the two groove slides (28) are fixedly installed with a sleeve (32). A positioning sleeve (21) is provided on the side of the sleeve (32), and the positioning sleeve (21) is connected to the tensioning seat (6). The two sleeves (32) are symmetrical with the center line of the positioning sleeve (21) as the center of symmetry.

3. A construction device for nuclear power engineering according to claim 2, characterized in that: A vertical frame (7) is fixedly mounted on the upper ends of the two guide sleeves (4), a servo push cylinder (8) is fixedly mounted between the ends of the two vertical frames (7), an L-shaped push frame (13) is fixedly mounted on the output end of the servo push cylinder (8), a pressure frame (19) is slidably mounted on one end of the L-shaped push frame (13), and two clamping frames (27) are symmetrically connected to the lower end of the pressure frame (19), the ends of the clamping frames (27) are connected to the groove slide column (28), and the clamping frames (27) are arranged in an inclined manner.

4. A construction device for nuclear power engineering according to claim 3, characterized in that: The other end of the L-shaped push frame (13) is fixedly mounted with a carrier frame (14), and the lower end of the carrier frame (14) is rotatably mounted with a knife shaft (23), and the outer surface linear array of the knife shaft (23) is coaxially inlaid with multiple ring knives (20), and the inner surface linear array of one of the jackets (32) is extended with multiple ridges (33), and the spacing between the multiple ridges (33) is the same as the spacing between the multiple ring knives (20).

5. A construction device for nuclear power engineering according to claim 4, characterized in that: A sleeve frame (22) is fixedly mounted on the outer surface of the positioning sleeve (21), and the end of the sleeve frame (22) is fixed to the tensioning seat (6). A return spring (31) is wound around the outer side of the groove slide (28), and the opposite ends of the two groove slides (28) are coaxially inlaid with connecting caps (34), one end of the return spring (31) is fixed to the connecting cap (34), and the other end of the return spring (31) is fixed to the tensioning seat (6).

6. A construction device for nuclear power engineering according to claim 5, characterized in that: A lower connecting ear (29) is extended from the upper end of the groove slide column (28), and the lower end of the clamping frame (27) is rotatably connected to the lower connecting ear (29). Two upper connecting ears (30) are symmetrically extended from the lower end of the pressing frame (19), and the upper end of the clamping frame (27) is rotatably connected to the upper connecting ear (30). A protrusion (15) is extended from the corner of the L-shaped push frame (13), and a guide rod (12) is fixedly installed on the upper end of the protrusion (15), and one of the vertical frames (7) is slidably installed on the outer surface of the guide rod (12).

7. A construction device for nuclear power engineering according to claim 6, characterized in that: The middle part of the pressure frame (19) is penetrated and inlaid with a pressure shell (18), and an anti-dropping cap (24) is slidably installed inside the pressure shell (18). A pressure rod (17) is coaxially extended from the upper end of the anti-dropping cap (24), and the pressure rod (17) passes through the upper end of the pressure shell (18). The pressure rod (17) and the pressure shell (18) are slidably matched, and the upper end of the pressure rod (17) is coaxially inlaid with a pressure cap (16), and one end of the L-shaped push frame (13) is fixed to the pressure cap (16).

8. A construction device for nuclear power engineering according to claim 7, characterized in that: A servo motor (9) is fixedly mounted on the upper end of the carrier frame (14), and a synchronous belt (25) is connected between the output end of the servo motor (9) and the end of the knife shaft (23) via a pulley.

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